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RAD 156 Week 1
Part 2
| Question | Answer |
|---|---|
| 4 Forms of Energy- Electromagnetic Energy | Energy that travels through space as a combination of electric fields and magnetic field |
| 4 Forms of Energy- Chemical Energy | Energy stored in chemical bonds of atoms and molecules |
| 4 Forms of Energy- Electrical Energy | Energy transferred by the flow of electricity (moving electric charges) |
| 4 Forms of Energy- Thermal Energy | Energy that exists in the motion of atoms and molecules motion |
| Microwaves are an example of- | Electromagnetic Energy |
| A Battery is an example of- | Chemical Energy |
| An Electric Appliance is an example of- | Electrical Energy |
| A hot cup of coffee is an example of- | Thermal Energy |
| The total amount of mass-energy in a system __________ | Remains Constant |
| ________ can be transformed or converted into one another, but they cannot be created or destroyed | Mass and Energy |
| In diagnostic radiography, energy is typically _________ | Transformed |
| Albert Einstein’s famous formula, E = mc2, is an expression of the | Law of Conservation of Mass-Energy |
| What does the c stand for in E = mc2? | The Speed of Light |
| Electricity powering a lightbulb is an example of- | Energy |
| A nuclear reaction is an example of- | Mass converting into Energy |
| 4 Radiologic Quantities- Exposure | Amount of ionizations or charge in Air |
| 4 Radiologic Quantities- Absorbed Dose | Amount of Radiation Energy Absorbed in Matter |
| 4 Radiologic Quantities- Dose Equivalent | Amount of radiation energy absorbed in biologic tissue Includes biologic significance of dose |
| 4 Radiologic Quantities- Radioactivity | Rate of Radioactive Decay |
| Standard Unit- Roentgen (R) SI Unit- Coulomb per kilogram (c/kg) | Exposure |
| Standard Unit- Rad, or Radiation Absorbed Dose (rad) SI Unit- Gray (Gy) | Absorbed Dose |
| Standard Unit- Rem, or Radiation Equivalent Man (rem) SI Unit-Sievert (Sv) | Dose Equivalent |
| Standard Unit- Curie (Ci) SI Unit-Becquerel (Bq) | Radioactivity |
| _________ Is Used to estimate patient dose (mGy) (also used in Air KERMA) | Gray (Gy) |
| _________Is Used by physicist to measure exposure of equipment for calibration | Coulomb per kilogram (c/kg) (or Roentgen) |
| _______ Is Used in Nuclear Medicine | Becquerel (Bq) |
| ________ Is Used to estimate occupational dose (mSv) | Sievert (Sv) |
| Kinetic Energy Released in Mass of Air- | Air KERMA |
| Air KERMA Units- | J/kg or Gy |
| 1 Joule = | Work done when a force of 1 newton moves an object 1 meter in the direction of the force |
| Tube Housing- | Metal that encases the tube Filled with oil |
| Dissipate heat and Preventing excess radiation are functions of the? | Housing |
| Collimator Box- | Restricts x-ray beam – NOT FOCUS! 2 pairs of lead shutters Light bulb, Mirror, and Plastic bottom with crosshairs |
| What is the Most Versatile type of tube stand? | Ceiling-Mounted |
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